Compass plugin providing an elastic grid system

Susy is a semantic CSS framework, entirely native to Compass. Susy is
an elastic grid system that will never activate the side-scroll bar.
With Susy you can build quick, custom grids that respond to the needs
of the user without giving up design integrity. Susy sets your width
on the outer element (container), adds a max-width of 100% and builds
the rest of your grid in percentages. The philosophy and technique
are based on Natalie Downe's "CSS Systems" - which introduces
difficult math in the service of beautiful structure.

Using simple mixins, columns can be created, suffixed, prefixed, and
nested easily - and always in flexible percentages.